This is not a difficult task.
Using ramps, axle stands and chocks, all inexpensive.
Latex/nitrile gloves and eye protection recommended.
A 13mm or 1/2" wrench and a ratchet with a deep socket or 2 wrenches.
Some exhaust paste.
The car in the video is an Audi A3. The same procedure would apply to just about any cars exhausts that have brackets and clamps.
Please think safety first. Do not attempt this if you are unsure or do not have the correct tools and equipment.
This video is for guide purposes.